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11 Posts
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1214
September 19th, 2016 07:00
Morrorview /S manual recovery
Hi Folks,
can somebody describe the manual recovery(without SRM or something else) process of vSphere VMs?
Scenario would be 2x VNX5200 in two sites with Mirrorview/S configured LUNs, one SAN Fabric with some Vmware Hosts attached.
My idea is to configure the zoning on the fabric, so the ESXi Servers also can see the secondary VNX. Also preconfigure Masking on the sec. VNX.
After the primary VNX fails completly, we promote the sec. LUNs and register the VMs from this LUNs.
Thats it?
Are there some more points to that we need to consider?
Best Regards
Didi
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jslabonte1
12 Posts
0
September 22nd, 2016 05:00
It does not. But a majority of peoples use SRM to automate that part.
You could also use this LucD script to automate the process:
http://www.lucd.info/2011/08/11/vmx-raiders-revisited/
dynamox
9 Legend
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20.4K Posts
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September 19th, 2016 14:00
so you would zone but not present any LUNs ? As you know MirrorView target LUNs are in "read-only" mode when MirrorView is syncing and also when it's fractured. To make them truly read-write you will need to promote them or fracture/delete secondary.
Rainer_EMC
4 Operator
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8.6K Posts
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September 19th, 2016 15:00
take a look at the Techbook
https://www.emc.com/collateral/hardware/technical-documentation/h8229-vnx-vmware-tb.pdf
DWormsbecher
11 Posts
0
September 20th, 2016 07:00
I think it would be no problem also to present the secondary LUNs to the Hosts. As you say they are in read-only and have probably different names. And yes I know, only after promote i can deal with them.
What I want to know is, after the promote action, do i have to reregister the VMs on the secondary(now primary) LUNs?
iop2go
1 Rookie
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54 Posts
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September 20th, 2016 13:00
The best way to test the behaviors of the mirrored LUNs in your environment would be to clone or snapshot them.
That way, you don't have to fracture the synhcronisation before you can test a read/write LUN, this can be done while syncing.
dynamox
9 Legend
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20.4K Posts
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September 20th, 2016 14:00
yes, I believe SRM does that for you but since you are doing it manually you will need to register them in vCenter.
DWormsbecher
11 Posts
0
September 22nd, 2016 00:00
Rainer,
you mean this section of the document(Page 209)?
4. Right-click a consistency group and select Synchronize to synchronize all LUNs as
MirrorView LUN synchronization performs the following changes:
I'm a little bit confused about the last point. Can not imagine that the process does it automatically.
Regards
Didi